“All friendly feelings for others,’ he wrote, ‘are extensions of a man’s feelings for himself.’ The message was that when you like yourself and feel secure in yourself, then you will have plenty of love to give. Similarly, if you know what makes you happy, then you will be in a stronger position to find a way of extending that happiness to those around you. If, on the other hand, you are uncomfortable with who you are, or harbour some self-loathing, then you will have little love to offer others.”